5 Francs - Rainier III Essai

Essai pieces from Monaco's 1970s issues were produced in tiny quantities — typically 100 or fewer examples — primarily for distribution to collectors, monetary officials, and archival purposes rather than any circulation function. The Principality had no independent central bank, with the Banque de France overseeing monetary affairs under the 1962 Franco-Monégasque monetary convention, which meant Monégasque coinage served largely as a sovereign gesture rather than a practical circulating medium.

The span of years across the KM references suggests the essai was struck at multiple points within the type's production window, a not uncommon practice at the Paris Mint for smaller client states.